Methods for controlling towed marine sensor array geometry

US8737164B2 · kind B2 · utility

Assignee

• PGS Geophysical AS · NO

Inventors

• Øyvind Hillesund · Sandvika, NO
• Nils Lunde · Oslo, NO

Key dates

• Filing date: Mar 24, 2009
• Grant date: May 27, 2014
• Expiry date: Dec 22, 2031

Classification

• Technology area (CPC —): General

Abstract

A method for towing a streamer array includes moving a vessel along a body of water. Streamers are towed by vessel. A relative position is determined at selected points along each streamer with respect to the vessel. At least one of the streamers is deflected at least one longitudinal position along the streamer in response to the determined positions to maintain the streamers in a selected geometry. The selected geometry is related to one of survey vessel heading, energy source trajectory, previously plotted sensor trajectory and a lateral separation related to distance from the towing vessel.